Apple Watch contract stuck “activating”

[Vostick]

Any ideas how I get this resolved? I am on a monthly sim-only contract and have added Apple Watch for £5 per month. The status on my iPhone is “activating”. O2 services can’t see my contract online but I have received a contract via O2 text message.

[Oxonian]

@lele_ck 

If that question is directed at others who have had problems, such as @Vostick, @Tom31 or @Caseynw03, you need to tag them thus. 👍